baber/WOPTO huggingface dataset:
Patent GB-1447645-A (GB)
Title: Process for heat-treating high strength alloy steels to improve  the sulphide corrosion cracking resistance thereof
IPC: C21D6/00
Filed: 1973-08-06
Abstract: 1447645 Heat-treating alloy steels SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 6 Aug 1973 [7 Aug 1972] 37154/73 Heading C7A High strength alloy steels containing less than 0À5% C are quenched so that at the critical instance for quench crack formation the quench rate is as high as possible but just below the rate at which those cracks would form, after which the steel is tempered for the minimum time required to eliminate all untempered martensite platelets and at such a temperature that a minimum hardness of R c  25 is achieved. Preferably the steel contains less than 5% each of Mn, Sc, Al, Cr, Nb, Mo or Ni and/or less than 0.65% Cu. The treatment is applied particularly to tubing for oil wells.
Patent GB-876397-A (GB)
Title: Improvements in or relating to cast iron having a high phosphorus content
IPC: C22C37/04
Filed: 1957-11-28
Abstract: A treatment for high phosphorus cast iron, i.e. containing more than 0.7% phosphorus comprises adding a chill inducing agent to the melt, casting, and subjecting the casting to an annealing treatment at 80 to 1000 DEG C.  The chill inducing agent may be Mg, Ce, or Ca and mixtures thereof, Cu.Te alloy, B, or Te and it is preferable to desulphurize the metal, e.g. by soda ash, before adding the agent. The metal may, after treatment and with or without an innoculation with Fe-Si, be cast into chill moulds. The phosphorus is obtained in a spheroidal form.  Specification 630.070 is referred to.
Patent GB-447512-A (GB)
Title: Improvements in instruments for indicating the direction of an electrical or magnetic field or radio emanation
Filed: 1934-12-31
Abstract: 447,512. Earth-inductor machines. GIBBONS, A. B., 38, Weymouth Street, London. Dec. 31, 1934, No. 37340. [Class 35] [See also Groups XXXVI and XL] In an instrument for indicating the direction of an electric or magnetic field, in which a magnetically -sensitive indicating element, not directly affected by said field, is caused to assume a constant direction relatively to the field by means of an armature positively rotated in the field, the indicating element is mounted wholly or partly within the field of one or more of a plurality of positively rotated armatures. In an earthinductor compass, Fig. 1, two coils 1, 2 are mounted on a shaft 12 provided with turbine blades 10 rotated by tangential air jets 11. The earth inductor coil 1 is enclosed in a sphere 8 of nonconductive material. If desired, slip rings 18 may be provided on the shaft 12, and the current from the coil 1 may be passed through brushes and terminals 20 to a valve amplifier before being supplied to the coil 2. In a modification, Fig. 3, two sets of coils 23, 27 and 24, 28 are mounted on separate frames 25, 26 which are rotated in opposite directions by belts 40, 41, one of which is crossed.
Patent GB-841088-A (GB)
Title: Improvements in and relating to stabilized vinyl alkyl ether resins
IPC: C08K5/08
Filed: 1957-12-02
Abstract: A polyalkylvinyl ether resin is stabilized against degradation by heat and light by incorporating 0.3-1% of mono-tertiary-butyl hydroquinone.  The stabilizer may be added either to the resin as such or to a solution of the resin, e.g. in toluene.
Patent GB-1108836-A (GB)
Title: Improvements in or relating to modulated carrier wave transmitters
Inventor: LEAK MALCOLM SAUNDERS
IPC: H03K7/08
Filed: 1966-04-22
Abstract: 1,108,836. Modulators. MARCONI CO. Ltd. 23 May, 1967 [22 Aug., 1966], No. 37452/66 Heading H3R. A pulse width modulated signal is applied to the grid of a valve 23 whose anode circuit is coupled by a transformer 9, 10 into the H.T. supply for a modulator amplifier 53. The pulse width modulated signals are demodulated by the filter 4, and the resulting demodulated signal amplitude modulates the output from an oscillator 6. The valves may be replaced by transistors, Fig. 5 (not shown), and the amplitude modulator 53 may be replaced by an angle modulator.
Patent GB-339788-A (GB)
Title: Improvements in glazing
IPC: E04D3/08
Filed: 1929-12-09
Abstract: 339,788. Asseler, J. d'. Oct. 23, 1939, [Convention date]. Glazing.-Consists of a glazing construction wherein rafters of U-iron are employed, which rafters are provided with laths of wood or other material on which the adjoining edges of the glass panes rest and are fixed by putty below clamping strips which resiliently hold the putty in the joints and against the edges of the panes. The raster 16, Figs. 3 and 5, of a roof structure carries a wooden lath 17 on which rest glass panes 20, 21, and 22. Flanged strips 25 are secured to the rafters by screws 30, the lateral flanges 26, 27 thereof holding the putty 35, 36 against the edges of the panes and the laths in a resilient manner. The laths are stepped, as shown, and the panes supported by each step are adapted to overlap those on the step below. The flanged strips also overlap, the lower end 40 of one being drawn over the upper end 41 of the one below and together with it fastened to the rafter by a screw 30. To facilitate the overlapping of the strips, the centre trough-shaped portion may taper from one end to the other. The lowermost panes are supported by cranking the lower ends of the flanged strips which secure them to the rafters. The laths may also be of artificial wood, hard paper, artificial stone or like materials, to which may be applied a weatherproof coating of paint. To facilitate the erection of the roof, a wooden beam 60, Fig. 2, may be secured to the ridge girder 11 by screws 61, and may be of sufficient height to serve as a ladder support. A sheetlead cover 62, extending over the flanged strips, is applied to the beam and an extra sheet-iron cover 63 is applied as shown.
Patent GB-527901-A (GB)
Title: Electric discharge tube
IPC: H01J61/073
Filed: 1938-12-30
Abstract: 527,901. Discharge lamps. MEISEL, R. P. Dec. 30, 1938, No. 37931. [Class 39 (i)] A discharge lamp for giving ultra-violet radiation has large electrodes 5 carrying activating material and heated after the striking of the arc by a resistance heater 10, 101 in series with the main discharge ; the star shaped electrodes are also heated by the discharge, but are so big that this heating is insufficient to maintain the arc. The heater 10, 10<SP>1</SP> may form the ballast resistance or may be in parallel with a resistance and choke coil. The heater coils are carried in a fireclay plate 8. The filling may be mercury or cadmium with argon as starting gas. The electrodes may be made of folded nickel strips between which may be placed barium oxide.
Patent GB-1477038-A (GB)
Title: Production of aminoanthraquinones from nitroanthraquinones
IPC: C07C323/37
Filed: 1974-08-30
Abstract: 1477038 Aminoanthraquinones from nitroanthraquinones BASF AG 30 Aug 1974 [1 Sept 1973] 37931/74 Heading C4P A process for the production of an aminoanthraquinone (or aminobenzanthrone) is claimed, wherein the corresponding nitro compound is reduced in an aqueous solution containing from 0À5 to 50% by weight of an alkaline-reacting agent with at least the stoichiometrically necessary amount of a hydrazine at a temperature of from 25‹ C. to the boiling temperatures of the reaction mixture. Hydrazine, methylhydrazine, N,N-dimethylhydrazine or phenylhydrazine may be used, and as alkaline reagent NaOH, KOH, Na 2 CO 3  or K 2 CO 3  or mixtures may be employed. Examples describe the preparation of: a mixture of 1,5-diamino-4,8-dihydroxy- and 1,8- diamino - 4,5 - dihydroxyanthraquinones; 1- aminoanthraquinone; 2 - carboxy -, 5 - chloro-, 2 - and 2 - ethyl - 1 - aminoanthraquinone; 1,4 - dichloro - 5 - amino - anthraquinone; 1,2- dihydroxy - 3 - aminoanthraquinone; a mixture of 1,5- and 1,8-diaminoanthraquinones; 1,5 - diamino - 4,8 - dihydroxyanthraquinone; 1,4 - diaminoanthraquinone - 2 - carboxylic acid; 1 - amino - 2 - methylanthraquinone; 1- amino - 5 - [4<SP>1 </SP>- chlorophenylamino] - 4,8 - dihydroxyanthraquinone; Bz - 1 - aminobenzanthrone; Bz - 1,6 - diaminobenzanthrone; and 1-amino-2-hydroxyanthraquinone. In addition the use of: 1,5-dinitroanthraquinone; 1,8 - dinitroanthraquinone; 1 - nitro- 4 - hydroxyanthraquinone; 1 - nitro - 4,5,8- trichloroanthraquinone; 5 - nitro - 1 - aminoanthraquinone; 1,5 - dinitro - 4,8 - dichloroanthraquinone; 1,5 - dinitro - 4,8 - dimethoxyanthraquinone; 1,8 - dinitro - 4,5 - dimethoxyanthraquinone; 1 - nitro - 5 - phenylamino- 4,8 - dihydroxyanthraquinone; 1 - nitro - 5- phenylaminoanthraquinone; 1,4 - diamino - 5- nitroanthraquinone; 2 - nitroanthraquinone; 1,6 - dinitroanthraquinone; 2,7 - dinitroanthraquinone and Bz - 1 - bromo - 6 - nitrobenzanthrone in the preparation of the corresponding amino compounds is also claimed.
Patent GB-1141567-A (GB)
Title: Vehicle door latch
IPC: E05B65/36
Filed: 1967-08-17
Abstract: 1,141,567. Latches. GENERAL MOTORS CORP. 17 Aug.; 1967 [14 Sept., 1966], No. 37966/67. Heading E2A. A car door latch having a bifurcated bolt 28 pivotally mounted at 30 has a shoe 58, e.g. of nylon, pivotally mounted at 60 which, as the striker (moving in the direction of the arrow 84) moves into the base 38 of the opening in the bolt during the latching operation, is rocked so that its surface 94 presses downwardly on the striker to prevent vertical oscillation. The shoe engages an enlarged head of the striker whereas the bolt is engaged by a shank of the striker. The shoe is spring-loaded into the position shown and is guided against lateral movement by the bolt on one side and by a ridge (70), Fig. 2 (not shown), pressed out from a frame plate on the other, or in a modification, Fig. 7 (not shown), the shoe has bearing ridges on either side. In the same modification, the pin on which the shoe pivots carries an inner rubber sleeve (106) surrounded by a metal sleeve (104) to allow the shoe a small degree of translational movement. The bolt 28 has steps 40 and 42 on its periphery which are engaged by a detent 46 to hold the bolt in safety and fully latching positions. The detent may be rocked to release the bolt by a solenoid 56. Reference has been directed by the Comptroller to Specification 994,564
Patent GB-872238-A (GB)
IPC: D01H5/56
Filed: 1959-11-10
Abstract: 872,238. Drafting-apparatus. SKF KUGELLAGERFABRIKEN G.m.b.H. Nov. 10, 1959 [Dec. 23, 1958], No. 38116/59. Class 120(2) To allow drafting-apparatus to be adapted for sliver, slubbing or roving, and for fibres differing in kind or length, the apparatus being of the kind having individually-weighted guide arms for the top rolls which with variable-pressure weighting-means form units which are adjustable in position on the carrier arm, the guide arms are of different lengths which with their weighting- means are interchangeable, and at least one guide arm affords several alternative bearings for a pressure-member forming part of the weighting-means. In a preferred form, each guide arm 12 Fig. 2 is pivoted at 13 to a holder 5 which can be secured by a nut 6 in the desired one of a number of slots in the carrier arm: the guide-arm has two rectangular bearings slots 12<SP>11</SP>, Fig. 5, to receive a pressure-member 11 bent as shown at its ends, and having a rib 11<SP>1</SP> and a seat 19 for the end of a coil spring 7 the pressure applied by which can be raised by rotating a pin 8, the degree of pressure being determined by means of notches 10 provided on a disc 9 rotatable with the pin. The member 11 can be reversed and inserted in a second bearing slot so that with three notches 10, six different loadings for the roll 14 can be obtained. Markings may be provided on the holders 5 or guide arms 12 indicating the particular pressures obtainable for the various pressure steps of the spring and the position of the pressure member while distinguishing marks may be provided on the units and on the carrier arm indicating the applications corresponding to particular arrangements of the units.
Patent GB-1235987-A (GB)
Title: Improvements in or relating to apparatus for aligning crown corks or the like
IPC: B65G47/256
Filed: 1969-07-30
Abstract: 1,235,987. Orienting crown corks. A. NAECKER, E. ORTMANN, A.-L. SEEMANN, and N. BALTES, [trading as ORTMANN & HERBST]. 30 July, 1969 [3 Aug., 1968], No. 38164/69. Heading B8S. As crown corks 6, 7 fall down a tube 1 those oriented as at 6 are turned slightly anti-clockwise by a deflector 4 on the wall of the tube, and those oriented as at 7 are turned slightly clockwise by the deflector. The latter corks fall down a curved tube formed by guides 5, 5<SP>1</SP> and 12, 12<SP>1</SP> from the bottom of which they pass into a straight tube down which the caps 6 have fallen. In falling down the curved tube the caps are turned through 180 degrees so that they are facing the same way as the caps which pass down the straight tube. In an alternative arrangement both tubes are curved so that all the caps are turned through 90 degrees either clockwise or anti-clockwise.
Patent GB-821871-A (GB)
Title: An improvement in trigger mechanism for firearms
Inventor: KENNERLEY-TAYLER HORACE
IPC: F41A19/33
Filed: 1956-12-14
Abstract: 821,871. Firearms. MINISTER OF SUPPLY. Nov. 28, 1957 [Dec. 14, 1956] No. 38187/56,. Classes 92 and 119 A trigger mechanism for automatic firearms comprises a .trigger 1 on a pivot 4, a sear 12 mounted on a pivot 13 so as to have both rotational and translational motion, pressure loading means which tends to move the sear away from the trigger and into the path of a breech-block 14, which itself can move the sear translationally against the said pressure loading means and a-movable change-fire cam 25 that at one setting restrains movement of the sear to prevent the gun from firing, at the second setting permits the trigger to operate the sear for single shot firing and at a third setting orients the sear to permit automatic fire. The pressure loading means comprises a spring 20 housed in a recess in the sear and a plunger 21 whose free end engages a recess 22 in the lower trigger heel 3. The sear has a pair of parallel legs 17 spaced on either side of a shoulder surface 18. The change-fire cam 25 encloses a spring 29 and a bevel-nosed plunger 30 that co-operate with grooves 32 and 33 in a trigger stop-block 31. The change-fire cam is set in position by an external thumb-lever 23 (Fig. 5 not shown) outside the side plates in which the trigger mechanism is 'housed. In the "safe" position shown in Fig. 1 the change lever is rotated until an arm 26 on it contacts a back stop 36 and. the sear plunger 21, acting on the lower trigger heel 3 causes the sear 9 to be moved translationally so that the sear axis pin 13 is against the forward end of the slot 11. The sear is disengaged from the trigger and is held in contact with a gun casing stop face 16 by contact between the sear legs 17 which press against the lugs 28 on the change lever. Thus the trigger does not operate the sear and even if the breech-block 14 is put into its rearward cocked position so that the sear is moved . forward some distance by it to re-engage the upper trigger heel 2 the sear still cannot disengage the breech-block because of the abutment between the lugs 17 and the change lever lugs 28. In the "repeat" or "single shot" position shown in Fig. 2 the plunger 30 on the change lever is retained in the groove 33 and the change lever itself is freed from contact with the sear 9. The breech-block 14 which is retained behind the sear head 10 pushes the sear toe 12 into engagement with a heel 2 of the trigger 1. When the trigger is pulled the trigger heel 2 rotates the sear and moves its head 10 from the path of the breech-block for firing. The sear then moves rearward over its axis pin 13 and rotates to re-erect the sear head 10 to retain the breech block again on recoil. Fig. 4 shows the position of the mechanism for "automatic" fire. The shoulder 27 of the change-fire cam 25 contacts the shoulder 18 on the sear so that the sear head 10 is withdrawn from the path of breech block by rotation of the trigger heel 2 against the sear toe 12 so long as the trigger is pressed.
Patent GB-807292-A (GB)
Title: Gyro compasses
IPC: G01C19/38
Filed: 1956-12-14
Abstract: 807,292. Yielding bearing supports. SPERRY RAND CORPORATION. Dec. 14, 1956 [Dec. 30, 1955], No. 38224/56. Class 12 (1). [Also in Groups XX and XXXVIII] A shock-proof bearing for use in a gyro compass (see Group XXXVIII) contains a U-shaped rubber ring 35 in an annular recess between the boss 37 and the retaining ring 41, and inside the latter is a damping cup 15 immersed in liquid, the cup being attached to the shaft 31.
Patent GB-1434496-A (GB)
Title: Catalytic converters
IPC: B01J8/06
Filed: 1974-09-02
Abstract: 1434496 Catalytic conversion of nitrogen oxides AEROCHEM RESEARCH LABORATORIES Inc 2 Sept 1974 [30 Nov 1973] 38263/74 Heading ClA [Also in Division B1] A mixture of NO and NO 2  is catalytically converted to NO by a process which comprises passing the gas to be treated through a network of parallel flow tubes and in direct contact with a wire catalyst, preferably platinum, threaded through such tubes, the wire being heated resistively to the reaction temperature. An apparatus for effecting the conversion comprises a housing 12 having an inlet 14 and outlet 16, the interior being divided into a first chamber 30 and a second chamber 32, a plurality of tubes 34 providing the sole means of communication between the chambers and a resistively-heatable wire of catalytic material 40 extending through the tubes.
Patent GB-829316-A (GB)
Title: Improved tongue for shuttle boxes in weaving looms
IPC: D03D49/52
Filed: 1956-12-14
Abstract: 829,316. Shuttle swells; shuttle stopmotions for looms. METAPIC SOC. ANON. HOLDING LUXEMBOURGEOISE. Dec. 14, 1956 [Dec. 17, 1955], No. 38267/56. Class 142(2) A shuttle swell 1 at the mouth of the shuttle box is pivoted at a point 2 which is on a perpendicular with respect to the portion 3 of the swell that is first engaged by a shuttle entering the box. An eccentric 4 can be turned to adjust the position of the adjacent end of the swell. A lever 6 connected to the dagger 7 is moved by the swell by means of an adjustable stop 5 to raise the dagger when the shuttle enters the box.
Patent GB-369655-A (GB)
Title: Improvements relating to electron discharge tubes or thermionic valves
IPC: H01J17/04
Filed: 1930-12-19
Abstract: 369,655. Discharge rectifiers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Dec. 19, 1930, No. 38338. Convention date, July 9. [Class 39 (i).] In gas-filled rectifiers with one or more shields between the cathode and one or more anodes, one shield 12 is cylindrical with a closed cross section surrounding the cathode 11 and is shaped or mounted asymmetrically with respect to an anode 6. Different paths for the electron discharge from the cathode to the anode pass through the two open end, of the shield 12 but one is shorter than any other, reverse discharges being thus suppressed. In modfications, the asymmetry is ob tained or increased by additiona shields screening the anode witl respect to parts of the cathode or shield 12, for example, the shield 12 may carry a further shield extending at right-angles to it along the anode 6. As shown, the shield 12 is symmetrical with respect to the cathode and the anode 6 is mounted over one .end of the cathode. Alternatively, the anode may be centrally positioned and asymmetric in shape, or the shield may extend beyond the cathode farther at one end than at the other or may becut away at one end on the side near the anode. The lead 7 to the metal or graphite anode 6 may be covered with baked-on ceramic material or with a steatite tube 8 secured to the anode by such material. The cathode 11 may be coated with oxide or alloyed at its surface with emissive metal or may be indirectly heated. At starting, a discharge may be produced between the screen and the cathode or the screen is connected to the anode through a resistance or condenser. Specifications 345,080 and 357,794 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also shields not completely surrounding the cathode and having a narrow or wide opening at the side remote from the anode. This subject-matter does not appear in the Specification as accepted.
Patent GB-1001308-A (GB)
Title: Method and apparatus for producing crystalline structures
IPC: C23C16/04
Filed: 1963-09-30
Abstract: <PICT:1001308/C6-C7/1> An epitaxial growth is produced on a carrier in an evacuated chamber 1 by passing a gas or vapour over the surface of the carrier between slot-shaped injection nozzle 18 and suction outlet 19 while the carrier is heated by a deflectable electron beam 4. The carrier may be heated to 1000-3000  DEG C.  Different portions of the surface may be heated to different temperatures. Layers of different substances, e.g. carbon, germanium or silicon, may be built up. Each layer may cover the entire surface or a predetermined surface.  The electron beam may be controlled by a programmed automatic computer or by scanning of a pattern. Carbon may be deposited from carbon tetra-chloride, -bromide or -iodide at 2300 DEG C.  Silicon may be deposited from silicon tetrachloride at 1900 DEG C.ALSO:<PICT:1001308/C1/1> An epitaxial growth is produced on a carrier in an evacuated chamber 1 by passing a gas or vapour over the surface of the carrier between slot-shaped injection nozzle 18 and suction outlet 19 while the carrier is heated by a deflectable electron beam 4. The carrier may be heated to 1000-3000 DEG  C. Different portions of the surface may be heated to different temperatures. Layers of different substances, e.g. carbon or silicon, may be built up. Each layer may cover the entire surface or a predetermined surface. The electron beam may be controlled by a programmed automatic computer or by scanning of a pattern.  Carbon may be deposited from carbon tetra-chloride, bromide or iodide at 2,300 DEG  C.  Silicon may be deposited from silicon tetrachloride at 1900 DEG  C.
Patent GB-977670-A (GB)
Title: A device for storing drawings or other sheets of large dimensions in suspended condition
IPC: B42F15/06
Filed: 1962-10-11
Abstract: 977,670. Filing papers. HANDELSVERENIGING HAGEN N.V. Oct. 11, 1962 [Oct. 13, 1961], No. 38503/62. Heading B6E. A device for suspending drawings in a file comprises a U-shaped holder 1, Fig. 1, provided with a top 4 which is extended at the rear end at 7 and is U-shaped at the front 5 for engagement over transverse file supports 9, 8, respectively, one side 2 of the holder having an upturned lip 10, and the other side 3 having a horizontal inturned lip (11, not shown) and an inclined end-piece 12. The filming device 13 for the drawings 19, Fig. 2, is adapted to be slid endwise of the holder 1 between the sides 2, 3, and comprises a U-shaped support having a top 14, a short side 15 which engages within the lip 10, a longer side 16 provided with filing pins 18 which rest on the horizontal lip 11 on the side 3, and extensions 17 which facilitate the sliding operations. Perforated drawings 19 are threaded over the filing pins 18 before the device 13 is engaged within the holder 1, and the drawings are retained by a locking follower 20, 21. In a modification, the two side limbs 2, 3 are set wider apart, and a further central limb is provided to enable two filing devices 13 to be slid into the holder 1.